Java列表分页查询结果导出到CSV文件，导入CSV文件并解析

 import java.io.BufferedReader;
 import java.io.BufferedWriter;
 import java.io.File;
 import java.io.FileOutputStream;
 import java.io.FileReader;
 import java.io.IOException;
 import java.io.OutputStreamWriter;
 import java.util.ArrayList;
 import java.util.List;

 /**
  * CSV操作(导出和导入)
  *
  */
 public class CSVUtil {

     /**
      * 导出
      *
      * @param file
      *            csv文件(路径+文件名)，csv文件不存在会自动创建
      * @param dataList
      *            数据
      * @return
      */
     public static String exportCsv(File file, List<String> dataList) {

         boolean isSucess = false;

         if (!file.getParentFile().exists()) {
             file.getParentFile().mkdirs();
         }
         if (!file.exists()) {
             try {
                 file.createNewFile();
             } catch (IOException e) {
                 throw new RuntimeException(e);
             }
         }

         FileOutputStream out = null;
         OutputStreamWriter osw = null;
         BufferedWriter bw = null;
         try {
             out = new FileOutputStream(file);
             osw = new OutputStreamWriter(out, "UTF-8");
             bw = new BufferedWriter(osw);
             if (dataList != null && !dataList.isEmpty()) {
                 for (String data : dataList) {
                     bw.append(data).append("\r");
                 }
             }
             isSucess = true;
         } catch (Exception e) {
             e.printStackTrace();
             isSucess = false;
         } finally {
             if (bw != null) {
                 try {
                     bw.close();
                     bw = null;
                 } catch (IOException e) {
                     e.printStackTrace();
                 }
             }
             if (osw != null) {
                 try {
                     osw.close();
                     osw = null;
                 } catch (IOException e) {
                     e.printStackTrace();
                 }
             }
             if (out != null) {
                 try {
                     out.close();
                     out = null;
                 } catch (IOException e) {
                     e.printStackTrace();
                 }
             }
         }

         return file.getAbsolutePath();
     }

     /**
      * 导入
      *
      * @param file
      *            csv文件(路径+文件)
      * @return
      */
     public static List<String> importCsv(File file) {
         List<String> dataList = new ArrayList<String>();

         BufferedReader br = null;
         try {
             br = new BufferedReader(new FileReader(file));
             String line = "";
             while ((line = br.readLine()) != null) {
                 dataList.add(line);
             }
         } catch (Exception e) {
         } finally {
             if (br != null) {
                 try {
                     br.close();
                     br = null;
                 } catch (IOException e) {
                     e.printStackTrace();
                 }
             }
         }
         return dataList;
     }

     public static void main(String[] args) {
         // File file = new File("D:/s.csv");
         // CSVUtil.importCsv(file);

         File file = new File("D:/222.csv");
         List<String> dataList = new ArrayList<String>();
         dataList.add("1");
         dataList.add("2");
         dataList.add("3");
         dataList.add("4");
         dataList.add("5");

         CSVUtil.exportCsv(file, dataList);

     }

 }